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CVE-2026-89424

MEDIUM 6.4 CVSS 3.1
Published
October 1, 2026
Last modified
October 1, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Description

The Duplicate Post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'noti_token' parameter in all versions up to, and including, 1.5.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires that the site owner has enabled the plugin's User Level Permissions for the Subscriber role, as this grants access to the i_saw_this_noti AJAX branch needed to deliver the payload.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • inisev Duplicate Post — Up to and including 1.5.6

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/menu/notifications.php#L53
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/menu/notifications.php#L84
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/post/handler.php#L15
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/post/handler.php#L1598
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/copy-delete-posts/tags/1.5.6/post/handler.php#L1601
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3709767/copy-delete-posts/trunk/menu/notifications.php
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&new=3709767%40copy-delete-posts%2Ftags%2F1.5.7&old=3652254%40copy-delete-posts%2Ftags%2F1.5.6
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/c475c51e-f01d-4698-822f-5b8df999bf6d?source=cve
  • nvd.nist.gov Official NVD record